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GNS3 Lab & Exercise: VPN troubleshooting Lab Scenario

Written by irom from http:// on November 9th, 2011 | 4 Comments

Scenario: A simple IPsec tunnel between fast Ethernet interfaces of routers SW1 (f1/1) and R1(f0/0). But it doesn’t work..

SW1#ping 10.0.0.2 source 10.0.10.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.2, timeout is 2 seconds:
Packet sent with a source address of 10.0.10.1
…..
Success rate is 0 percent (0/5)

R1#ping 10.0.10.1 source 10.0.0.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.10.1, timeout is 2 seconds:
Packet sent with a source address of 10.0.0.2
…..
Success rate is 0 percent (0/5)

Find out why without looking into initial configuration files, all IOS commands are allowed.

Routers Used: Cisco C3745
IOS: (C3745-ADVENTERPRISEK9-M), Version 12.4(23)
Feature of Topology: VPN, IPSEC, ISAKMP,RIP
Download GNS3 files: http://www.uploadhookup.com/index.php/files/get/YA4jjABr6Z/vpn-troubleshooting.rar

Solution:

Looking into initial configuration file will help !

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4 Responses to “GNS3 Lab & Exercise: VPN troubleshooting Lab Scenario”

  1. avatar Thomas McLean

    Thanks for that – a nice easy one but it lets you do some creative debugging and your mind opens up once again if you’ve not done it for a while!

  2. avatar ciscoaspirants

    thanks a lot for the lab… its really helpful !!

    how to configure vrf

  3. avatar Thomas To

    Done. Realy nice lab. Thanks irom!

  4. avatar ratan

    how can i eastablished a vpn tunnel between this ….i have try so many commend but tunnel are not established

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